+ e->stop_timer_handle =
+ tw_timer_start_4t_3w_256sl (&tm->triple_wheel, e - tm->test_elts,
+ 3 /* timer id */ ,
+ expiration_time);
+ }
+
+ adds += i;
+
+ for (i = 0; i < tm->niter; i++)
+ {
+ run_triple_wheel (&tm->triple_wheel, tm->ticks_per_iter);
+
+ j = 0;
+ vec_reset_length (deleted_indices);
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ tw_timer_stop_4t_3w_256sl (&tm->triple_wheel, e->stop_timer_handle);
+ vec_add1 (deleted_indices, e - tm->test_elts);
+ if (++j >= tm->ntimers / 4)
+ goto del_and_re_add;
+ }));
+ /* *INDENT-ON* */
+
+ del_and_re_add:
+ for (j = 0; j < vec_len (deleted_indices); j++)
+ pool_put_index (tm->test_elts, deleted_indices[j]);
+
+ deletes += j;
+
+ for (j = 0; j < tm->ntimers / 4; j++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ do
+ {
+ expiration_time = random_u64 (&tm->seed) & ((1 << 17) - 1);
+ }
+ while (expiration_time == 0);
+
+ if (expiration_time > max_expiration_time)
+ max_expiration_time = expiration_time;
+
+ e->expected_to_expire = expiration_time +
+ tm->triple_wheel.current_tick;
+
+ e->stop_timer_handle = tw_timer_start_4t_3w_256sl
+ (&tm->triple_wheel, e - tm->test_elts, 3 /* timer id */ ,
+ expiration_time);
+ }
+ adds += j;
+ }
+
+ vec_free (deleted_indices);
+
+ run_triple_wheel (&tm->triple_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d adds, %d deletes, %d ticks\n", adds, deletes,
+ tm->triple_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) adds + (f64) deletes +
+ (f64) tm->triple_wheel.current_tick) / (after - before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_4t_3w_256sl (&tm->triple_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test2_triple_ov (tw_timer_test_main_t * tm)
+{
+ u32 i, j;
+ tw_timer_test_elt_t *e;
+ u32 initial_wheel_offset = 0;
+ u32 expiration_time;
+ u32 max_expiration_time = 0;
+ u32 *deleted_indices = 0;
+ u32 adds = 0, deletes = 0;
+ f64 before, after;
+
+ clib_time_init (&tm->clib_time);
+
+ tw_timer_wheel_init_1t_3w_1024sl_ov (&tm->triple_ov_wheel,
+ expired_timer_triple_ov_callback,
+ 1.0 /* timer interval */ , ~0);
+
+
+ /* Prime offset */
+ initial_wheel_offset = 75700;
+ run_triple_ov_wheel (&tm->triple_ov_wheel, initial_wheel_offset);
+
+ fformat (stdout,
+ "initial wheel time %d, fi %d si %d gi %d\n",
+ tm->triple_ov_wheel.current_tick,
+ tm->triple_ov_wheel.current_index[TW_TIMER_RING_FAST],
+ tm->triple_ov_wheel.current_index[TW_TIMER_RING_SLOW],
+ tm->triple_ov_wheel.current_index[TW_TIMER_RING_GLACIER]);
+
+ initial_wheel_offset = tm->triple_ov_wheel.current_tick;
+
+ fformat (stdout,
+ "test %d timers, %d iter, %d ticks per iter, 0x%llx seed\n",
+ tm->ntimers, tm->niter, tm->ticks_per_iter, tm->seed);
+
+ before = clib_time_now (&tm->clib_time);
+
+ /* Prime the pump */
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ do
+ {
+ expiration_time = random_u64 (&tm->seed) & ((1 << 17) - 1);
+ }
+ while (expiration_time == 0);
+
+ if (expiration_time > max_expiration_time)
+ max_expiration_time = expiration_time;
+
+ e->expected_to_expire = expiration_time + initial_wheel_offset;
+
+ e->stop_timer_handle =
+ tw_timer_start_1t_3w_1024sl_ov (&tm->triple_ov_wheel,
+ e - tm->test_elts, 0 /* timer id */ ,
+ expiration_time);
+ }
+
+ adds += i;
+
+ for (i = 0; i < tm->niter; i++)
+ {
+ run_triple_ov_wheel (&tm->triple_ov_wheel, tm->ticks_per_iter);
+
+ j = 0;
+ vec_reset_length (deleted_indices);
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ tw_timer_stop_1t_3w_1024sl_ov (&tm->triple_ov_wheel,
+ e->stop_timer_handle);
+ vec_add1 (deleted_indices, e - tm->test_elts);
+ if (++j >= tm->ntimers / 4)
+ goto del_and_re_add;
+ }));
+ /* *INDENT-ON* */
+
+ del_and_re_add:
+ for (j = 0; j < vec_len (deleted_indices); j++)
+ pool_put_index (tm->test_elts, deleted_indices[j]);
+
+ deletes += j;
+
+ for (j = 0; j < tm->ntimers / 4; j++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ do
+ {
+ expiration_time = random_u64 (&tm->seed) & ((1 << 17) - 1);
+ }
+ while (expiration_time == 0);
+
+ if (expiration_time > max_expiration_time)
+ max_expiration_time = expiration_time;
+
+ e->expected_to_expire = expiration_time +
+ tm->triple_ov_wheel.current_tick;
+
+ e->stop_timer_handle = tw_timer_start_1t_3w_1024sl_ov
+ (&tm->triple_ov_wheel, e - tm->test_elts, 0 /* timer id */ ,
+ expiration_time);
+ }
+ adds += j;
+ }
+
+ vec_free (deleted_indices);
+
+ run_triple_ov_wheel (&tm->triple_ov_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d adds, %d deletes, %d ticks\n", adds, deletes,
+ tm->triple_ov_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) adds + (f64) deletes +
+ (f64) tm->triple_ov_wheel.current_tick) / (after - before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ TWT (tw_timer) * t;
+
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ t = pool_elt_at_index (tm->triple_ov_wheel.timers, e->stop_timer_handle);
+ fformat (stdout, " expiration_time %lld\n", t->expiration_time);
+ }));
+ /* *INDENT-ON* */
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_1t_3w_1024sl_ov (&tm->triple_ov_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test1_single (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 offset;
+
+ tw_timer_wheel_init_2t_1w_2048sl (&tm->single_wheel,
+ expired_timer_single_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /*
+ * Prime offset, to make sure that the wheel starts in a
+ * non-trivial position
+ */
+ offset = 123;
+
+ run_single_wheel (&tm->single_wheel, offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d\n",
+ tm->single_wheel.current_tick,
+ tm->single_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ offset = tm->single_wheel.current_tick;
+
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ u32 expected_to_expire;
+ u32 timer_arg;
+
+ timer_arg = 1 + i;
+ timer_arg &= 2047;
+ if (timer_arg == 0)
+ timer_arg = 1;
+
+ expected_to_expire = timer_arg + tm->single_wheel.current_tick;
+
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+ e->expected_to_expire = expected_to_expire;
+ e->stop_timer_handle = tw_timer_start_2t_1w_2048sl
+ (&tm->single_wheel, e - tm->test_elts, 1 /* timer id */ ,
+ timer_arg);
+ }
+ run_single_wheel (&tm->single_wheel, tm->ntimers + 3);
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat(stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ fformat (stdout,
+ "final wheel time %d, fast index %d\n",
+ tm->single_wheel.current_tick,
+ tm->single_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_2t_1w_2048sl (&tm->single_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test1_double (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 offset;
+
+ tw_timer_wheel_init_16t_2w_512sl (&tm->double_wheel,
+ expired_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /*
+ * Prime offset, to make sure that the wheel starts in a
+ * non-trivial position
+ */
+ offset = 227989;
+
+ run_double_wheel (&tm->double_wheel, offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d\n",
+ tm->double_wheel.current_tick,
+ tm->double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ e->expected_to_expire = i + tm->double_wheel.current_tick + 1;
+ e->stop_timer_handle = tw_timer_start_16t_2w_512sl
+ (&tm->double_wheel, e - tm->test_elts, 14 /* timer id */ ,
+ i + 1);
+ }
+ run_double_wheel (&tm->double_wheel, tm->ntimers + 3);
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat(stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ fformat (stdout,
+ "final wheel time %d, fast index %d\n",
+ tm->double_wheel.current_tick,
+ tm->double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_16t_2w_512sl (&tm->double_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test1_two_timer_double (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 offset;
+
+ tw_timer_wheel_init_2t_2w_512sl (&tm->two_timer_double_wheel,
+ expired_timer_two_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /*
+ * Prime offset, to make sure that the wheel starts in a
+ * non-trivial position
+ */
+ offset = 2745;
+
+ run_two_timer_double_wheel (&tm->two_timer_double_wheel, offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d\n",
+ tm->two_timer_double_wheel.current_tick,
+ tm->two_timer_double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ e->expected_to_expire = i + tm->two_timer_double_wheel.current_tick + 1;
+ e->stop_timer_handle = tw_timer_start_2t_2w_512sl
+ (&tm->two_timer_double_wheel, e - tm->test_elts, 1 /* timer id */ ,
+ i + 1);
+ }
+ run_two_timer_double_wheel (&tm->two_timer_double_wheel, tm->ntimers + 3);
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat(stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ fformat (stdout,
+ "final wheel time %d, fast index %d\n",
+ tm->two_timer_double_wheel.current_tick,
+ tm->two_timer_double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_2t_2w_512sl (&tm->two_timer_double_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test3_triple_double (tw_timer_test_main_t * tm)
+{
+ tw_timer_test_elt_t *e;
+ u32 initial_wheel_offset = 0;
+ u32 expiration_time;
+ u32 max_expiration_time = 0;
+ u32 adds = 0, deletes = 0;
+ f64 before, after;
+
+ clib_time_init (&tm->clib_time);
+
+ tw_timer_wheel_init_4t_3w_256sl (&tm->triple_wheel,
+ expired_timer_triple_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ initial_wheel_offset = 0;
+ run_triple_wheel (&tm->triple_wheel, initial_wheel_offset);
+
+ fformat (stdout,
+ "initial wheel time %d, fi %d si %d gi %d\n",
+ tm->triple_wheel.current_tick,
+ tm->triple_wheel.current_index[TW_TIMER_RING_FAST],
+ tm->triple_wheel.current_index[TW_TIMER_RING_SLOW],
+ tm->triple_wheel.current_index[TW_TIMER_RING_GLACIER]);
+
+ initial_wheel_offset = tm->triple_wheel.current_tick;
+
+ fformat (stdout, "Create a timer which expires at wheel-time (1, 0, 0)\n");
+
+ before = clib_time_now (&tm->clib_time);
+
+ /* Prime the pump */
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ /* 1 glacier ring tick from now */
+ expiration_time = TW_SLOTS_PER_RING * TW_SLOTS_PER_RING;
+ e->expected_to_expire = expiration_time + initial_wheel_offset;
+ max_expiration_time = expiration_time;
+
+ e->stop_timer_handle =
+ tw_timer_start_4t_3w_256sl (&tm->triple_wheel, e - tm->test_elts,
+ 3 /* timer id */ ,
+ expiration_time);
+
+ run_triple_wheel (&tm->triple_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d adds, %d deletes, %d ticks\n", adds, deletes,
+ tm->triple_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) adds + (f64) deletes +
+ (f64) tm->triple_wheel.current_tick) / (after - before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_4t_3w_256sl (&tm->triple_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test4_double_double (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 initial_wheel_offset;
+ u32 expiration_time;
+ u32 max_expiration_time = 0;
+ u32 *deleted_indices = 0;
+ u32 adds = 0, deletes = 0;
+ f64 before, after;
+
+ clib_time_init (&tm->clib_time);
+
+ tw_timer_wheel_init_16t_2w_512sl (&tm->double_wheel,
+ expired_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+ /* Prime offset */
+ initial_wheel_offset = 0;
+
+ run_double_wheel (&tm->double_wheel, initial_wheel_offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d slow index %d\n",
+ tm->double_wheel.current_tick,
+ tm->double_wheel.current_index[TW_TIMER_RING_FAST],
+ tm->double_wheel.current_index[TW_TIMER_RING_SLOW]);
+
+ initial_wheel_offset = tm->double_wheel.current_tick;
+
+ fformat (stdout, "test timer which expires at 512 ticks\n");
+
+ before = clib_time_now (&tm->clib_time);
+
+ /* Prime the pump */
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ expiration_time = 512;
+
+ if (expiration_time > max_expiration_time)
+ max_expiration_time = expiration_time;
+
+ e->expected_to_expire = expiration_time + initial_wheel_offset;
+ e->stop_timer_handle =
+ tw_timer_start_16t_2w_512sl (&tm->double_wheel, e - tm->test_elts,
+ 14 /* timer id */ ,
+ expiration_time);
+ }
+
+ adds = 1;
+
+ vec_free (deleted_indices);
+
+ run_double_wheel (&tm->double_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d adds, %d deletes, %d ticks\n", adds, deletes,
+ tm->double_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) adds + (f64) deletes +
+ (f64) tm->double_wheel.current_tick) / (after - before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_16t_2w_512sl (&tm->double_wheel);
+ return 0;
+}
+
+static clib_error_t *
+test5_double (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 initial_wheel_offset;
+ u32 expiration_time;
+ u32 max_expiration_time = 0;
+ u32 adds = 0, deletes = 0;
+ f64 before, after;
+
+ clib_time_init (&tm->clib_time);
+
+ tw_timer_wheel_init_16t_2w_512sl (&tm->double_wheel,
+ expired_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /* Prime offset */
+ initial_wheel_offset = 7567;
+
+ run_double_wheel (&tm->double_wheel, initial_wheel_offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d slow index %d\n",
+ tm->double_wheel.current_tick,
+ tm->double_wheel.current_index[TW_TIMER_RING_FAST],
+ tm->double_wheel.current_index[TW_TIMER_RING_SLOW]);
+
+ initial_wheel_offset = tm->double_wheel.current_tick;
+
+ fformat (stdout,
+ "test %d timers, %d iter, %d ticks per iter, 0x%llx seed\n",
+ tm->ntimers, tm->niter, tm->ticks_per_iter, tm->seed);
+
+ before = clib_time_now (&tm->clib_time);
+
+ /* Prime the pump */
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ expiration_time = i + 1;
+
+ if (expiration_time > max_expiration_time)
+ max_expiration_time = expiration_time;
+
+ e->expected_to_expire = expiration_time + initial_wheel_offset;
+ e->stop_timer_handle =
+ tw_timer_start_16t_2w_512sl (&tm->double_wheel, e - tm->test_elts,
+ 14 /* timer id */ ,
+ expiration_time);
+ }
+
+ adds += i;
+
+ run_double_wheel (&tm->double_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d adds, %d deletes, %d ticks\n", adds, deletes,
+ tm->double_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) adds + (f64) deletes +
+ (f64) tm->double_wheel.current_tick) / (after - before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */